Mfe - 2A651 Vol 4 Unit Review

100 Questions | Total Attempts: 35

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Angle Quizzes & Trivia

Questions and Answers
  • 1. 
    Which 54H60–91 propeller subassembly transmits engine torque to the propeller blades?
    • A. 

      Barrel.

    • B. 

      Control.

    • C. 

      Low pitch stop.

    • D. 

      Pitchlock regulator

  • 2. 
    On the 54H60–91 propeller, which component delivers the actual propeller blade angle from the blade to the control assembly?
    • A. 

      Microadjusting ring.

    • B. 

      Beta feedback shaft

    • C. 

      Blade segment gear.

    • D. 

      Blade bushing.

  • 3. 
    On the 54H60–91 propeller, which is a function of the pitchlock regulator?
    • A. 

      Stops the dome piston from increasing blade angle above 23.3°.

    • B. 

      Prevents the blades from decreasing pitch if hydraulic pressure is lost.

    • C. 

      Prevents the cam bearing rollers from bottoming out in the track slopes.

    • D. 

      Prevents the propeller from going into the beta range when the throttle is positioned in alpha range.

  • 4. 
    On the 54H60–91 propeller, which pitchlock component mechanically holds the stationary and rotating pitchlock ratchets apart during reversing and unfeathering operations?
    • A. 

      Pitchlock control cam.

    • B. 

      Pitchlock ratchet piston.

    • C. 

      Externally threaded ring.

    • D. 

      Externally splined spacer ring.

  • 5. 
    On the 54H60–91 propeller, which component is used in place of a shim plate on the No. 1 blade?
    • A. 

      Beveled thrust washer.

    • B. 

      Stationary ratchet.

    • C. 

      Beta segment gear.

    • D. 

      Blade barrel shim.

  • 6. 
    On the 54H60–91 propeller, which dome assembly part allows the rotating cam to turn while the stationary cam remains in a fixed position?
    • A. 

      Roller shaft.

    • B. 

      Track slopes.

    • C. 

      Ball bearings.

    • D. 

      Roller bearings.

  • 7. 
    On the 54H60–91 propeller, what function is a task of the low pitch stop assembly? 
    • A. 

      Prevents the propeller from going into the beta range when the throttle is positioned in the alpha range.

    • B. 

      Limits cam travel and prevents the propeller from exceeding feather and reverse blade angles.

    • C. 

      Prevents the blades from decreasing pitch if an overspeed condition occurs.

    • D. 

      Transmits engine torque to the blades.

  • 8. 
    On the 54H60–91 propeller, which component provides a means for balancing the propeller?
    • A. 

      Deicer contact ring holder.

    • B. 

      Hub mounting bulkhead.

    • C. 

      Front spinner.

    • D. 

      Afterbody.

  • 9. 
    On the 54H60–91 propeller, hydraulic fluid is directed from the pump housing to the barrel assembly through what component?
    • A. 

      Valve housing.

    • B. 

      Low pitch stop.

    • C. 

      Transfer bearing.

    • D. 

      Pitchlock regulator.

  • 10. 
    On the 54H60–91 propeller, what is the function of the differential gear train assembly?
    • A. 

      Drives the main and standby pressure pumps.

    • B. 

      Controls operation of the pilot valve and serves as an electrical ground.

    • C. 

      Drives the rotating sleeve when the throttle is positioned in the beta range.

    • D. 

      Transmits blade angle movement to the valve housing and drives the propeller governor flyweights.

  • 11. 
    On the 54H60–91 propeller, during normal propeller operation, the output of which pumps is used?
    • A. 

      Main pressure and main scavenge.

    • B. 

      Standby pressure and main scavenge.

    • C. 

      Auxiliary pressure and main pressure.

    • D. 

      Auxiliary pressure and auxiliary scavenge.

  • 12. 
    On the 54H60–91 propeller, which pump assists the main pressure pump when large blade angle movements are required?
    • A. 

      Main scavenge.

    • B. 

      Standby pressure.

    • C. 

      Auxiliary pressure.

    • D. 

      Auxiliary scavenge.

  • 13. 
    On the 54H60–91 propeller, which cam disarms the NTS system linkage when the throttle is positioned in the beta range?
    • A. 

      Manual feather.

    • B. 

      Beta follow-up.

    • C. 

      Speed set.

    • D. 

      Beta set.

  • 14. 
    On the 54H60–91 propeller, which valve, contained in the valve housing, controls the flow of hydraulic fluid to and from the dome assembly?
    • A. 

      Standby.

    • B. 

      Feather.

    • C. 

      Backup.

    • D. 

      Pilot.

  • 15. 
    The 54H60–91 propeller governor speeder spring tension positions the pilot valve to maintain what percent rpm in the beta range?
    • A. 

      99 to 103%.

    • B. 

      104 to 108%.

    • C. 

      109 to 113%.

    • D. 

      114 to 118%.

  • 16. 
    On the 54H60–91 propeller, when the throttle is moved to the GROUND IDLE position, what degree setting does the coordinator pointer indicate on the protractor?
    • A. 

      0°.

    • B. 

      18°.

    • C. 

      34°

    • D. 

      90°.

  • 17. 
    What switch, located in the control quadrant, activates the 54H–60–91 propeller governor speed bias servo assembly as the throttle is moved into the flight idle gate?
    • A. 

      Beta indicator.

    • B. 

      Landing gear warning.

    • C. 

      Low speed ground idle.

    • D. 

      Synchrophaser disarming.

  • 18. 
    The condition lever GND STOP position is only effective on the ground because the circuits made in this position are completed through what switches?
    • A. 

      Landing gear touchdown.

    • B. 

      Low speed ground idle.

    • C. 

      Landing gear warning.

    • D. 

      Air start.

  • 19. 
    What component in the T56 engine coordinator provides reference signals to the electronic TD amplifier that are proportional to the desired TIT?
    • A. 

      Feather shaft.

    • B. 

      Potentiometer.

    • C. 

      65º microswitch.

    • D. 

      66º microswitch.

  • 20. 
    On the 54H60–91 propeller, the output of what pump is sufficient to supply hydraulic pressure for normal propeller operation?
    • A. 

      Auxiliary pressure.

    • B. 

      Standby pressure.

    • C. 

      Backup pressure.

    • D. 

      Main pressure.

  • 21. 
    On the 54H60–91 propeller, if the main filter becomes clogged, which valve opens to assure continued flow?
    • A. 

      Check

    • B. 

      Bypass.

    • C. 

      Low pressure relief.

    • D. 

      High pressure relief.

  • 22. 
    On the 54H60–91 propeller, which valve sets and maintains a pressure differential of about 100 psi between system pressure and the increase- or decrease-pitch pressure?
    • A. 

      Check.

    • B. 

      Bypass.

    • C. 

      Low-pressure relief.

    • D. 

      High-pressure relief.

  • 23. 
    On the 54H60–91 propeller, when the backup valve is opened, the hydraulic pressure routed to the governor pilot valve is used for which operation?
    • A. 

      Pitchlock.

    • B. 

      Standby.

    • C. 

      Reverse.

    • D. 

      Airstart.

  • 24. 
    On the 54H60–91 propeller, which pump is used to feather or unfeather the propeller during static propeller operation?
    • A. 

      Main.

    • B. 

      Backup.

    • C. 

      Standby.

    • D. 

      Auxiliary.

  • 25. 
    On the 54H60–91 propeller, which type of valve opens to allow the output of the standby pump to combine with the output of the main pump?
    • A. 

      Check.

    • B. 

      Bypass.

    • C. 

      Low pressure relief.

    • D. 

      High pressure relief.